Current motor operated pump



Oct. 27, 1936. w R KAMMER 2,058,591

CURRENT MOTOR OPERATED PUMP Original Filed March 28, 1955 57 J4 ii {/4954 4 7 Ni TKammer be disposed on the bed of a stream either per-Patented Oct. 27, 1936 UNITED STATES PATENT OFFICE CURRENT MOTOROPERATED PUMP William Frank Kammer, Wenatchee, Wash.

Original application March 28, 1935, Serial No. 13,547.- Divided andthis applicatlon'December 3, 1935, Serial No. 52,695

3 Claims. (Cl. 103-474) This invention relates to current motors,particularly to motors of this character having feathering blades, andis a division of my pending application, Serial No. 13,547, filed March28, 1935. j ,The general object of this invention is to provide acurrent motor of this character which has been found to be particularlyeifective in generating power, in which friction is reduced to aminimum, and which is adapted particularly to Figure 1 is a sideelevation of a current motorv constructed in accordance with myinvention;

Figure 2 is a vertical sectional view through the motor on the line 22of Figure 1, the blades motor'is mounted, this base being held to the Jskids by bolts l2, or other suitable means. En-

lar wall l6, and intermediate the height of this retention of the ballbearings 24, the ball bearbeing omitted.

Referring to the drawing, l0 designates a skid or skids upon which thebase ll of the current gaged by bolts l3 with this base is the maincasting I4 of the pump base. This casting has a lower-annular portion 15 provided with the annuannular wall there is an annular inwardly andupwardly extending flange ll formed with a hearing at its center for theinsertion of the central driving shaft. The wall l6 at its upper end isrecessed at I8 for the reception of a screen, which will be laterdescribed.-

Extending downward through the upper and lower bearings of the base is acrank shaft I9 provided adjacent its lower end with a crank 20. Thelower end of this crank shaft is provided with a step 2| resting uponball hearings or other anti-friction bearings '22 and held in place bynuts and washers 23, or equivalent means. The upper end of the annularflange I! is provided with a stuffing box and packing gland for the ingsbeing retained in place by the annular ballbearing retainer 25 screwedinto place. The packing gland is designated 26. The upper end of theshaft I9 is expanded to form a supporting disk or plate 21a. upon whichthe head, designated generally 21, is mounted. This head will be laterdescribed.

Extending through the wall l6 adjacent the lower end thereof are aplurality of cylinders each designated 28. These cylinders are alike andare shown as being held to the wall l6 by the cap screws 29 orequivalent means. outer end of each cylinder is closed at 30. The innerend is open, and operating in these cylinders are the pistons 3| havingthe rods 32 connected operatively to the crank 20 by ball-bearings. Itwill be seen that with this construction when one piston is forcedoutward, the other piston is retracted. While I have only shown two ofthese pistons and two cylinders, I wish it to be understood that I amnot to be limited to this number as more than one pair of cylinders maybe used, there being proper cranks, of course,

formed upon the shaft IQ for this purpose.

Extending circumferentially around the base I4 is a collector pipe 33which opens into the several cylinders, the ports leading from the cylinders into the collector pipe being controlled by means of the checkvalves 34 which may be of any suitable or usual construction. Thesecheck valves are so designed that as the piston moves outward the liquidin the cylinders will be forced into the collector 33 and the checkvalves closed when the piston is retracted. Each cylinder is providedwith an inlet port directly opposite the outlet port leading to thecollector, and from this inlet port there is a duct 35 which Opens intothe tion shown whereby the duct 35 connected to the cylinder wall orwhereby the check valve is mounted, as this may bev obviously varied inmany ways without departing from this invention, as hereinafter definedin the claims.

Of course, the collector 33 is provided with adelivery pipe leading toany desired point and from which the water from the collector isdischarged.

For the purpose of screening the water which The i passes from the riveror stream into the chamber 36, I provide the screen 38 which is mountedupon and for rotation with the head 28, the lower end of this screenoverlapping the face of the recess I8, the screen being supported atintervals by the supporting members 39.

The plate 210. has a fiat upper surface which rests against thehead 21and is held thereto in any suitable manner, as for instance, by thescrews 40. The interior of the head is hollow to provide an annularchamber 4|, and the top of the head is closed by means of a plate 42.held to the body of the chamber by screws 43; A central many-sidedchamber .or compartment -is formed by the wall 44, this wallhaving aninterior flange 45 through which screws 46 pass plate of the head 28.Screws 4'! may also extend downward through the top plate-4 2" into thiswall 44. The inner faceof this wall is formed with a plurality ofopenings 48 fo'rthe passage of the blade shafts 49, and the wall andpacking glands, designated generally 53 holding the ball-bearings inplace and preventing the passage of liquid.

' I have illustrated four shafts 49, and hence the central chamber 54defined by the wall 44 is shown as being-square in cross" section, butit is to be distinctly understood that more than four shafts 49 might beused, and thus the chamber sufiicient to say that these paddles, asshown in "in this position.

As before mentioned, this machine is designed to be disposed-on theriver bottom,.and it may be pulled in or out of the river for servicing.

It may be mounted on any suitable means for this purpose, as forinstance," astone boat or sled, or it may be mountedon a truck carriedon wheels which would run into the river a sufficient depth to submergethe unit. Because of the fact that the unit sits on the river bottombelow the surface of the river, there is no danger of floating debrisdamaging the blades.

It is intended that the chamber defined by the portions [5, l6 and I!shall be filled with oil to thus reduce friction as much as possible. A-

1 small pressure relief valve 64 may be disposed in the base to takecare of any pressure devel- ..opedbywater which might seep. .past theshaft.

Water being heavier than oil will go to the bottom and the oil levelwhich will be within one inch of the top when filled, will naturally beforced up filling the upper portion of the casting or base, while thewater will find its level and pass out through the outlet or reliefvalve in the base. The thrust nut and lock nut designated 23 in thedrawing takes up any up-anddown thrust. The lower ball-bearing}; carriesthe vertical load of the power headand the crank shaft.

The lower chamber enclosing the cranks 20 may be filled with oil fromany inlet opening closed by a plug.

While I have illustrated certain preferred details of construction, I donot wish to be limited g r v to these except as defined in the appendedclaims to hold the wall in engagementwith' the bottom as many 'minor'.details may be changed to suit various circumstances of operationwithout departing from the spirit of the invention.

Attention is particularly called to the fact that the screen '38 isrotatable with 'the"shaft' "l' 9 and head 21. This 'is so as .toprevent'the screen from clogging. By making it rotat'a' ble, particles which areforced against the exterior faceof the screen will be swept away as thescreen rotates andthus thescr'een will be kept freeof any'debris whichwould tend to clog it; Thusa maximum area of opening is left for waterto supply the pump cylinders and'there is nodan'ger of detritus gettinginto the cylinders through the inlet pipes 0 and possibly preventing theclosing of the valves or otherwise'damagin'g the apparatus.

{What is claimed is:+-

1'. A structure of the character described, including a casingconstituting a base andhaving a plurality of radial cylinders carriedthereby, a

vertical shaft mounted in bearings in said base havinga crank, pistonsconnected toLsaid crank and operating in saidcy'lindersl'each of saidcylinders having adjacent its outerie'nd amno inlet portand an outlet.port, a collecting .element mounted upon the base and into which all ofsaid outlet ports fromthe cylinders open, check valves in said portscontrolling the passage from the cylinders, the upper end of said casing.being;:. 5 formed to provide a water chamber, ducts leading from saidwater chamber to theinlet ports of the cylinders, check valvescontrolling the inlet of water from said ducts to the cylinders, a motoroperated power head carried upon the upper endu of the shaftandrotatable therewith, andascreen carried by said power head androtatablearound the wall of said chamber whereby water maybe admittedto-said chamber. I

2. A submersible pump of the charactendescribed, comprising .a hollowbody, cylindersfextending radially through the'wallof the ',.hollow bodyand closed at their outer ends, 'afshaft exv tending vertically throughthe body and mounted in bearings therein, a stuffing box at the upper:end of the hollow body through which the shaft passes, pistonsoperatingin the cylinders and 0peratively connected to the shaft to bereciprocated thereby, a'collectorcommon to all of the cylinders, valvescontrolling the discharge from-2 the cylinders into the collector, thebody having an annular wall'extending upward above "but spaced fromthestuffingfbox' and concentric with the shaft, ducts extending from thespace defined by said wall downward and outward to .th'e-7o outer endsof the cylinders and discharging thereinto, inwardlyv opening finlet vvalves controlling passage through said ducts, an .imperforate headcarried bysaid shaft andIrotating .therewithand screen means carried bythe rotatable head and-7 extending. downward into close proximity tosaid annular wall but rotating with said head.

3. A submersible pump of the character described, including a casingconstituting, a base, the lower portion of the casing having an upwardlyextending annular wall, an inwardly extending, partition wall extendinginward medially of the length of the annular wall and having a centrallydisposed stufllng box, a power operated shaft extending downward throughsaid stufling box and into the space below said partition and having acrank, radially disposed cylinders mounted in the annular wall of thecasing, pistons operating within the cylinders and connected to thecrank shaft, a collector common to all or the cylinders, the cylindershaving outlet ports opening into the collector, outwardly opening valvescontrolling communication between the collector and the cylinders, inletducts extending from the outer ends of the cylinders upward and inwardand opening within the annular wall above the partition, inwardlyopening inlet valves controlling communication between .said ducts andthe cylinders, and an annular screen rotatable with the shaft andextending around and in close adjacency to the upper end of the casing,the space defined between the base and the inwardly extending partitionwall constituting an oil space within which the shaft operates andcommunicating with the inner ends of the cylinders.

WILLIAM F. KAMMER.

